I do some type of pulling movement every training session except on my squat day. That is, if you don't consider RDL's a pulling movement. With that said, yes, they are very beneficial. I think all the extra pulling has not only helped with my deadlift, but definitely with my squat and bench too. My upper back feels tighter(in a good way) on both the squat and bench than ever before, and I believe that is because of all the extra back work I do these days.